Airborne geophysical surveys

Survey name Type Altitude Spacing Flight line distance
EscanabaM/R-D121.9 m 9.60 km1,284 km
HancockM/R-D121.9 m 4.80 km442 km
Iron Mtn - GLTZM-D100 m above ground0.15 km38,941 km
Iron RiverM/R-D121.9 m 4.80 km3,846 km
MarquetteM/R-D121.9 m 4.80 km2,655 km
Michigan A (Iron)M-Dz152.4 m above ground0.40 km13,840 km
Michigan C (Dickinson)M-Dz152.4 m above ground0.53 km3,540 km
Michigan FM-Dz152.4 m above ground0.40 km9,817 km
Marquette Harvey CentralM-Dz152.4 m above ground1.60 km780 km
Michigan E NorthM-Dz152.4 m above ground0.40 km4,506 km
MenomineeM-Dz152.4 m above ground0.80 km4,184 km
Delta '67M-Dz152.4 m above ground0.80 km7,966 km
Jacobsville Contact NorthM/R-D121.9 m above ground0.40 km302 km